MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Arduino knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What are the functions of the SDA and SCL pins of the Arduino UNO? |
| A. | They facilitate I2C communications |
| B. | They facilitate SPI Communications |
| C. | They facilitate USB Communications |
| D. | They facilitate Ethernet Communications |
| Answer» B. They facilitate SPI Communications | |
| 2. |
What is the function of the AREF pin in the Arduino UNO? |
| A. | It is used as a reference voltage for all analog voltage calculations in the board |
| B. | It is used as a reference voltage for all digital voltage calculations in the board |
| C. | It is used as a reference voltage for the power source on the board |
| D. | It is used as a reference voltage for the ground pins on the board |
| Answer» B. It is used as a reference voltage for all digital voltage calculations in the board | |
| 3. |
What is the function of the IOREF pin on the Arduino UNO? |
| A. | To provide a constant 12V DC supply |
| B. | To provide the voltage corresponding to the standard GPIO working voltage of the board |
| C. | To take input voltage and set it as a reference for all GPIO operations |
| D. | To provide ground |
| Answer» C. To take input voltage and set it as a reference for all GPIO operations | |
| 4. |
What is the full form of the I2C Protocol? |
| A. | Inter-Integrated Circuit |
| B. | Intra-Integrated Circuit |
| C. | Integrated-Inter Circuit |
| D. | Infinite-Integrated Circuit |
| Answer» B. Intra-Integrated Circuit | |
| 5. |
The pins SS, SCK, MOSI and MISO on the Arduino belong to the ___ bus. |
| A. | I2C |
| B. | SPI |
| C. | GPIO |
| D. | Ethernet |
| Answer» C. GPIO | |
| 6. |
What is the use for the 2 serial pins on the Arduino Diecimila? |
| A. | To send and receive GPIO digital signals |
| B. | To receive analog signals |
| C. | To send PWM signals |
| D. | To send and receive Serial TTL signals |
| Answer» E. | |
| 7. |
What does the analogRead() function do physically when invoked in a code? |
| A. | It accepts a digital Input |
| B. | Reads the raw voltage value |
| C. | Activates the ADC Circuit to read voltage values |
| D. | Activates the DAC Circuit to read voltage values |
| Answer» D. Activates the DAC Circuit to read voltage values | |
| 8. |
What is the use of the Vin pin present on some Arduino Boards? |
| A. | To provide a 5V output |
| B. | Is used for plugging in 3V supply |
| C. | To power the Arduino Board |
| D. | To ground the Arduino Board |
| Answer» D. To ground the Arduino Board | |
| 9. |
What is the use of the RESET button on the Arduino UNO? |
| A. | To restart the code present in the Arduino |
| B. | To restore a previous version of a code |
| C. | To erase the code present in the Arduino |
| D. | To erase the SRAM in Arduino Microcontroller |
| Answer» B. To restore a previous version of a code | |